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G. G. F. BOSWELL.

SHOCK ABSORBER.

wvucm'mn FILED MAY 3. 191a.

Patented Dec. '2, 1919.

GEORGE G. F. BOSWELL, OF INDIANAPOLIS, INDIANA.

SHOCK-ABSORBER.

To all whom it may eoneern:

Be it known that I, GEORGE G. F. BoswBLL, a citizen of the United States. and a resident of Indianapolis, county of Marion. and State of Indiana. have invented eertain new and useful Shock-Absorber; and I do hereby declare that the following is a full. .clear, and exact description thereof. reference-being had,t0' the accompanying drawings, in which like numerals refer. to like parts. A

This invention relates to shock absorbers for vehicles and it is deaigned priinarily for use ineonnection with Ford automobiles and trucks, although it. nu be undemtood that the same may be fused in connection trith any make of niachine or truck. The

it time objeetef the inyentionja in provid- ,:1ngfmean %f r .snspending the usual form of bodyspriiig (ilIfQCtagfiQlfl are h'm-k-absorber instead of from the.iisual forrn of hrarlteta now Commonly employed so that any shock delivered to the whls of tinvehiele will be absorbed by the shock absorber before reaching the body. s p ring a l -A further-feature of thhint'ention is the i provision ofimeans for adjustably suspending thehoekugbsprber shackle. from the usual foriu (If-bracket now employed for suspendingthe body a n'ings. A further feature fof'flzhe invent-ion the provision of spring' zbetween' the paitq nfithe shock absorber for controlling.thei hinging or pivotal'movenient ofietiiglf arts. 7

A further ,feature'zo thefinrention is the provision of means .for'linfiiting the swinginw movement oflbne part of the shook ab; soi'lver with the other part thereof. and a further feutureof Eheinrention is the provision of means .for retaining parts-of the shock absorber in alinement with and in juxta-position to the body spring.

A further feature of the inrentionis in. so connecting the parts of the shock absorber and the body spring, that any side thrust of the body and body spring will be directed against and taken up by the .prin;: of the shock abaorbeia.

The full nature of the invention will be understood from the aeeonnmnying drawings and the following description and claims.

In the drawing-a, Figure l is an elevation of the. front axlenuid body spring of a Ford automobile showing my improved shock Specification of Letters Patent.

Patented Dee. 2, 1919.

Application med May 3. 1918. Serial No. 232.243.

mobile whirh in this instant-e is of the Forthv \'ill'lt'l and 2 indieates the body sprin .while ll iudiratex the u ua| torn: of brarkut employed for supporting the bod) spring.

Instead. however. of uttaehine' the end olthe bod) spring to the brarltet. u Sllflt'k absorber 4 i:-. introduced between the brarltets and the ends of the body sprine eaeh lluu'li absorber edinprising a shaelthfl whi -h has au:arn| (3 between its end u'hirh is pirolall) attaehed to the upper ends of the brarlteta fl by mean of liulw 7. bolts 8 and t iue' extended respeetively through the lu'arhel and arm (3 and through the euih oi the links 7. lhe lower end of the sharlth- I- i bi for eated to form a yoke 1U whirh l'tt'l'irts' the end of the bod spring: 2, a bolt ll extending: transversely through the ends of the yoke and the laul) pring.

(tuna-rating with the -:harkle 5 is a haw member 12 hit-h has an angular exlension 13. one arm of u'hirh is hiturrated and straddles the yoke 10 and the end of the sprin" 2. the bolt 11 being: passed through the bifurcated end of the extension and thereby. pirotally runner-ting the base member with the sharkle. The other arm of the angular i xtensipn is likewise bifurcated and straddles the body sprin" 2, bolt-\- H and p 15 being extended through the latter bifureated end, one abore and one below the sprin"; thereby holdin; the base member and. in faet. the entire shock absorber, in

proper alinenient and juxtaqioaition to the bod spring.

spring 17 and assists in holding the spring in position. tlu lower end of the shank icing passed through a housing 20 on the base member 12. thus forming a connection between the shackle 5 and the base member. in order to permit a hoe movement of. the shackle ir ependently of the base member 12, the housin 20 is provided with an clongated slot 2 1 tlirough which the shank 19 extends and in order to limit the separating movement between the shackle and base member, the lower end of the shank 19 is provided with a Cross head 22 which normally extends at right angles to the long!- tudinal trend of the slot 2L as shown in Figs-4 and 5, thereby pix-venting the shank fronrentircly leaving or disengaging from the housing.

In assembling the shackle. and the base member preparatory to attaching them to the body spring and bracket, one of these nil-labors is turned at right angles to the olllt'l' and the cross head then Introduced through thc slot, after which the two parts are brought into proper alinement, thereby disposing the cross head at right angles to the slot and while )crmitting free movquient toward each other, limits the separating movement bctwccnthc shackle and base member. p

As shown in Fig. 2, instead of attaching the sup ml'tjng bracket for'thc rear spring .5 to the axle. u hracket'23 is attached to the brake drulu 24 through the medium of a bolt "35, the lower end of the shackle 5 being attached to said bracket by the links 7. and bolts H and ll. In order to hold the shackles in lixed Imsition, as against the end thrusts of the body springs and at the same time permit pivotal luorcuu-ut thereof, a locking clam r 26 is introduced between the pivotal end f the sup iortiug brackets and the iivotal ends of t 1c arms 6, the links 7 rassmg on opposite sides of the locking c amp and through recesses 27 in the edges of the ltKfkllifl dtilllpjllltl when the links are properly attached to the supporting brackets and ends of the arms. they will be securely held against pivotal movement on the brackets while the arms ti and shackles to which they are attached are free to pivot on the bolts 9. 'lhese locking clamps are to be so constructed as to position the pivotal ends of the arms 6 at various degrees of angle between the vertical in horizontal planes through the axis of} ebolts 8. The shackles 5. us for example, when the shock abemrbcrs are used in connection with )leasru'e cars or those carrying light: loads where considerable resiliency is required, are positioned as shown in Figs. 1 and 2, but when heavier loads are being carried and less resiliency of the s rings is required the links 7 are broug t to substantially vertical position so as to dispose the bolts 9 substantially di- 1 ,823 ,aso

rcctly above the bolts 8, thereby requiring a. heavier load a )(m the body springs to cause pivotal action a-tween the parts of the shock absorber.

To prevent the bolt 11 from rotation independently of the movement of the shackle 5 a locking plate 2% is attached to one face of the yoke 19 and has its opposite end provided with an o ieniug 29 which fits over the head of the ho t 11 and prevents rotation thereof with respect. to the yoke.

In attaching this form of shock absorber to a vehicle, the bolts employed for securing the body springs 2 to the links 7 are removed and the links then swung u )wardly' spud attached to the arm 6. The-en s of the iody sprin 2 are then brought into registration wit! theopenings through the ends of the augular extension 13 and the yoke 10 and through the openings in these parts are introduced the bolts 11, thereby permanently securing the shock absorbers to the body spring. The vertical portions of the angular extensions are then brought into ongagement with the body springs and lowered until the rollers 16- are resting u on the upper faces of the spring, and the its 15 are then introduced through the lower ends of the-vertical portions of the angular extensions and below the body spring, the bolts and rollers holding the shock absorbers in propen alinemeut and in engagement with the body springs.

'ith this form of structure, 'none of the parts of the vehicle have to be changed in order to attach the shock absorber as thla same brackets in their original positions and the links employed for attaching the body spring thereto are employed for attachin t m shoe-k ahsorbem to the brackets. It wil likewise be seen that the outward swinging movement of the shackles with respect to the base portion 12 will be limited through'tho" medium of the shackle lt) and'the head 22 thereon engaging with the housing 20. It will likewise b seen that by providing the locking clamps in different lengths, the shock absorlmrs can be arranged to.car lighte;- or heavier loads as occasion may require. By pivoting the end of the shackle and 'base uu-lnher and also the end of the body spring together and from the same bolt, any and t must on the body spring, caused by the side movement of the car body will be entirely taken .a i by the spring 1 as the end moveuamt of t c body spring will cause the same action on th'e shock absorber as a vertical u'loveuient of the bod spring.

This action therefore e iminates the casual lateral swinging movement of the car bod and when ateral movement is im arte which results only under extreme con itions, no up y the shock absorber spring.

{Jar or jerking action results as it is taken The invention claimed is: 1. The combination with the, body springs of a vehicle, and so )ort-ing brackets carried by parts of the re ncle, of shock absorbeis comprising base'porlions and shackle portions, a single means for pivotall v attaching the base portions, shackle portions and the ends of the springs together. a spring between the opposite ends of said base and lo shackle portions. means carried by the shackle portions adapted to engage parts of the base portions to limit the outward swinging movement of the shackle. portions, and means to adjustably attach the shackle. porlion to the. brackets.

2. The combination with a body spring of a vehicle, ofa shock absorber including a base portion, a shackle member, a spring cooperating with the base portion and shackle me|nber,,andmeans for pivotally connecting said base portion, shackle member and one end of the body spring together.

3. The combination with supporting brackets of a vehiele, of shock absorbers, each comprisin it's-hackle portion and a base portion, a sin u e means forpivotally' attaching the base portion andshackle portion together and to-the bod yvspring of the vehicle, and means toadjustably and pirotally atso tacli the shackle to the bracket ofthe vehicle to adapt the-shockabsorber for carrying different weights. 7 i 4. The wiiibination with a body spring of a which, of a shock absorber including a. 85 base portion misting upon and havinofloating action upon said body spring, a shackle portion plVOtii" mounted at one end, a. spring between t iii-base portion and the opposite mid of thcsb'acklc portion, and means 40 .lor connecting said base. portion, shackle portiolramt the end of the body spilng to- .gcthcr foi: .-ausing said parts to act in concert. The combination with the supporting 46 brackets andbody-springs ofa vehicle, of szhock absorbeis, each comprising a base member, a shackle cooperating therewith, a. single means for pivotally attaching the base member, shackle aud thc bod spring to- 50 nether. means to pirotally attach the shackle In the black-ct, means carried by the. shackle for engagement with the base member to limit the outward swinging movement of the shackle with respect to the base member, and 56 yielding meansj'hctwmen the base member and shackle. J i The combination with the bi dy spring of a vehicle, and a supporting b :icket carried by parts of the vebiclmof a shock ab- 60 orber including a base. portion and a shackle portion, means for pivoting said base portion, shackle portion and spring together, a spring between the base and shackle portions, and means for pivotally -36 attaching the shackle portion to the bracket.

7. The combination with the body spring of a vehicle. and a supporting bracket carried by parts of the. vehicle. of a shock absorber comprising a base portion and a shackle portion. said base and shackle having extensions, means for i.\'ot.in; said extensions aud the end of the body spring together, a spring between the. base and shackle portions, and means for pirotally attaching the shackle portion to Ihc bracket.

8. The. combination with supporting brackets and body springs of a \chiclc, of shock absorbers interposed bet ween said brackets and body springs, each comprising a base member having an angular extension, at shackle, one end of which is pirotally attached to one end of an angular extension, means to hold the base member in aliucmcnt with said body pring, mi-aus carried by the shackle adapted to engage parts of the. base member for limiting: the. outward swinging movement of the shackle, links attached at. one end to the shackle and at their olppositc ends to the bracket of said rchicc, and means between the links, bracket and the pivotal end of the shackle for holding the shackle in adjusted position upon the bracket.

9. The combination with the body spring of a vehicle. of a shock absorber comprising a base member and a shackle, means to pivotally attach the base member, shackle and one. end of the body spring together, and means on said shackle. for engagement with thcpirotal means for the shackle and base member to prevent rotation of lhe pivotal means independently of the shackle.

10. The combination with the body spring of a vehicle and Sll i)l)l'i'ill;1 brackets carricd by parts of the. vehicle, of shock absorbers each comprising a base portion, a shackle portion, a spring between one end of the base member and shackle, means to pirotally connect the opposite ends ol'said base and shackle and one end of the body spring together, and means for pivoting [he shackle to a r-uipportinp bracket in such manner that an and thrust of the body spring will be reccircd against and taken up in" the spring of the shock absorber.

ll. A, shock absorber constructi n for vehicles, including a base member, a homing projecting upwardly from the base member,

the closed end of said housing baring: an elongated narrow slot tbcrethrougb, a. shackle lor cooperation with said base mcmher, a coiled spring betwccn said base membcr and shack e and surrounding sa d housing, and means for holding the base member, spring and shackle in assembled formation While bciup attached to parts of the vehicle, comprising a shank integral with said shackle, and a transversely extending head at the. free curl of said shank adapted to pass through said slot when the shackle is turnm l at right angles to its normaifposition and to engage th closed end 0 the housing when the shackle is turned to its normal position and limit the outward movement of said shackle.

12. The combination with a supporting bracket of a vehicle, of a shock absorber, means for pivotaliy eonnectim the shock absorber with the bracket, anii a locking clamp resting upon said bracket between the 10 absorber in adjusted relation with thehracket whereby said shock absorber may be positiono for carrying different weights.

In witness whereof I have hereunto affixed my signature.

GEORGE G. F. BOSWELIL, 

